Some ten minutes' hard work, and the point of the Rat's cudgel struck something that sounded hollow.

大约十分钟的工夫后，水鼠兰特的棍尖打在什么东西上，发出空洞的声音。

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Asserting, as Mr Yang does, that Yahoo! All by itself could become "the starting point" on the Internet, and its advertising powerhouse, rings hollow.

杨先生断言雅虎所有事务都是自给自足，这是在互联网业务上的“基本出发点”，但是它的广告业务，依然是有名无实。

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At that point, all our excuses for self-centeredness will sound hollow: "I was too busy," or "I had my own goals," or "I was preoccupied with working, having fun, or preparing for retirement."

那时，为自我中心而辩解的声音如此苍白无力：“我太忙了，”或是“我有自己的人生目标，”又或者“我正忙着工作，玩乐，或者准备退休。”

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She didn't choose the highest point of the sloping property, as Schafer had been planning, but a hollow in the middle.

WSJ: Modern Pastoral

To resolve this, researchers were focusing on developing a vascular system in which liquid could be circulated in a network of hollow fibers within the material, which would allow the healing agent to be restocked through an access point.

CNN: The emerging world of self-healing materials